{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:VGPAUDCHEK5F5IFFCVEO6TKI7P","short_pith_number":"pith:VGPAUDCH","canonical_record":{"source":{"id":"1301.6663","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2013-01-28T20:26:30Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"147d6f61296931950f9dedb037fa18306a97d6ffe895580dbaca8cb19a3ab0ef","abstract_canon_sha256":"5acc4adada6064fe8e82673ddf89f019a2a65225c96be0cef233c7681971a991"},"schema_version":"1.0"},"canonical_sha256":"a99e0a0c4722ba5ea0a51548ef4d48fbd390d97016e50a6bffa29d024dd3575f","source":{"kind":"arxiv","id":"1301.6663","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6663","created_at":"2026-05-18T03:31:32Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6663v4","created_at":"2026-05-18T03:31:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6663","created_at":"2026-05-18T03:31:32Z"},{"alias_kind":"pith_short_12","alias_value":"VGPAUDCHEK5F","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VGPAUDCHEK5F5IFF","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VGPAUDCH","created_at":"2026-05-18T12:28:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:VGPAUDCHEK5F5IFFCVEO6TKI7P","target":"record","payload":{"canonical_record":{"source":{"id":"1301.6663","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2013-01-28T20:26:30Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"147d6f61296931950f9dedb037fa18306a97d6ffe895580dbaca8cb19a3ab0ef","abstract_canon_sha256":"5acc4adada6064fe8e82673ddf89f019a2a65225c96be0cef233c7681971a991"},"schema_version":"1.0"},"canonical_sha256":"a99e0a0c4722ba5ea0a51548ef4d48fbd390d97016e50a6bffa29d024dd3575f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:31:32.473550Z","signature_b64":"88nEMcIvakxT/M0BPPYSwxD5I7s5QIiFRi6shujK5X5TSJJ6befXxuAorOrzHYqnk7rDjfGyuz2tGyJNuMNUAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a99e0a0c4722ba5ea0a51548ef4d48fbd390d97016e50a6bffa29d024dd3575f","last_reissued_at":"2026-05-18T03:31:32.472976Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:31:32.472976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.6663","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:31:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u9HY4r31EtUlM8L/b15DZVo+RrEr8nc0a+y/m7VtGa5IPHrB+fqcuVXuH1vcE0olHFow4qC11L5UW3BmAN+cCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T04:09:37.635759Z"},"content_sha256":"d89cb0aa58680c3ad7c1642bd611b60095bf023989b0f7f7a8b98c26f3a4892e","schema_version":"1.0","event_id":"sha256:d89cb0aa58680c3ad7c1642bd611b60095bf023989b0f7f7a8b98c26f3a4892e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:VGPAUDCHEK5F5IFFCVEO6TKI7P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Using Quantum Coherence to Enhance Gain in Atomic Physics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.atom-ph","authors_text":"Pankaj K. Jha","submitted_at":"2013-01-28T20:26:30Z","abstract_excerpt":"Quantum coherence and interference effects in atomic and molecular physics has been extensively studied due to intriguing counterintuitive physics and potential important applications. Here we present one such application of using quantum coherence to generate and enhance gain in extreme ultra-violet(XUV)(@58.4nm in Helium) and infra-red(@794.76nm in Rubidium) regime of electromagnetic radiation. We show that using moderate external coherent drive, a substantial enhancement in the energy of the lasing pulse can be achieved under optimal conditions. We also discuss the role of coherence. The pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6663","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:31:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L3KHbs1ozicihUege18h8xQsbUA/Ka429RREzVgHy05JpxRKV3VKrl5Pia9XnYGDpd0kNoZEsdzn3Jcg3CbRDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T04:09:37.636103Z"},"content_sha256":"a8fe6a1650648cd40b61f725bf817ccad87887c5008a135cb32ca302ce877c2d","schema_version":"1.0","event_id":"sha256:a8fe6a1650648cd40b61f725bf817ccad87887c5008a135cb32ca302ce877c2d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VGPAUDCHEK5F5IFFCVEO6TKI7P/bundle.json","state_url":"https://pith.science/pith/VGPAUDCHEK5F5IFFCVEO6TKI7P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VGPAUDCHEK5F5IFFCVEO6TKI7P/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-30T04:09:37Z","links":{"resolver":"https://pith.science/pith/VGPAUDCHEK5F5IFFCVEO6TKI7P","bundle":"https://pith.science/pith/VGPAUDCHEK5F5IFFCVEO6TKI7P/bundle.json","state":"https://pith.science/pith/VGPAUDCHEK5F5IFFCVEO6TKI7P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VGPAUDCHEK5F5IFFCVEO6TKI7P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:VGPAUDCHEK5F5IFFCVEO6TKI7P","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"5acc4adada6064fe8e82673ddf89f019a2a65225c96be0cef233c7681971a991","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2013-01-28T20:26:30Z","title_canon_sha256":"147d6f61296931950f9dedb037fa18306a97d6ffe895580dbaca8cb19a3ab0ef"},"schema_version":"1.0","source":{"id":"1301.6663","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.6663","created_at":"2026-05-18T03:31:32Z"},{"alias_kind":"arxiv_version","alias_value":"1301.6663v4","created_at":"2026-05-18T03:31:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.6663","created_at":"2026-05-18T03:31:32Z"},{"alias_kind":"pith_short_12","alias_value":"VGPAUDCHEK5F","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"VGPAUDCHEK5F5IFF","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"VGPAUDCH","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:a8fe6a1650648cd40b61f725bf817ccad87887c5008a135cb32ca302ce877c2d","target":"graph","created_at":"2026-05-18T03:31:32Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Quantum coherence and interference effects in atomic and molecular physics has been extensively studied due to intriguing counterintuitive physics and potential important applications. Here we present one such application of using quantum coherence to generate and enhance gain in extreme ultra-violet(XUV)(@58.4nm in Helium) and infra-red(@794.76nm in Rubidium) regime of electromagnetic radiation. We show that using moderate external coherent drive, a substantial enhancement in the energy of the lasing pulse can be achieved under optimal conditions. We also discuss the role of coherence. The pr","authors_text":"Pankaj K. Jha","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2013-01-28T20:26:30Z","title":"Using Quantum Coherence to Enhance Gain in Atomic Physics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.6663","kind":"arxiv","version":4},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d89cb0aa58680c3ad7c1642bd611b60095bf023989b0f7f7a8b98c26f3a4892e","target":"record","created_at":"2026-05-18T03:31:32Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"5acc4adada6064fe8e82673ddf89f019a2a65225c96be0cef233c7681971a991","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atom-ph","submitted_at":"2013-01-28T20:26:30Z","title_canon_sha256":"147d6f61296931950f9dedb037fa18306a97d6ffe895580dbaca8cb19a3ab0ef"},"schema_version":"1.0","source":{"id":"1301.6663","kind":"arxiv","version":4}},"canonical_sha256":"a99e0a0c4722ba5ea0a51548ef4d48fbd390d97016e50a6bffa29d024dd3575f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a99e0a0c4722ba5ea0a51548ef4d48fbd390d97016e50a6bffa29d024dd3575f","first_computed_at":"2026-05-18T03:31:32.472976Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:31:32.472976Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"88nEMcIvakxT/M0BPPYSwxD5I7s5QIiFRi6shujK5X5TSJJ6befXxuAorOrzHYqnk7rDjfGyuz2tGyJNuMNUAw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:31:32.473550Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.6663","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d89cb0aa58680c3ad7c1642bd611b60095bf023989b0f7f7a8b98c26f3a4892e","sha256:a8fe6a1650648cd40b61f725bf817ccad87887c5008a135cb32ca302ce877c2d"],"state_sha256":"27a2bcf204eaef1b023b7821ba68227cb200c53d93d898b7be4f24f06ef2404d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JCxwnF39qLJKorVh6/1AWjo9GhTmmmyMlA7D69ocKPTW8GpAOZUvxVj8ire1oNaeQkZFQcNk+Snvd+1HzcvlDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T04:09:37.638130Z","bundle_sha256":"e7713ebd15e97b8a41261ca75ad6f9b625353de3c20a441aeceb16e1671d9952"}}